Here are the ways you can get more Zoo-tokens:
- Collect tokens from the Fountain (don't forget to increase its level to collect more)
- Complete Regular Tasks
- Catch butterflies in other players' zoos
- Fulfill requests for baby animals
- Get new levels and statuses
- Complete certain Quests
- Complete Tapjoy tasks
- Finally, you can purchase more Zoo-tokens by pressing the green "plus" button at the top of the screen